Two-cycle motor.



No. 893,738. PATENTED JULY 21, 1908.l G. L. LANGER.

TWO CYCLE MOTOR. ArrLwATloN FILED snr'r. 19. 190e.

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PATBNTED JULY 2l, 1908.

G. L. LANGER.

TWO CYCLE MOTOR.

APPLICATION FILED SEPT. I9. 1906.

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PATENTEI? J TLY 2l, 1908. G. L. LANGER.

TWO CYCLE MOTOR.

.API-LIOATION FILED SEPT.19.1906.

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l GOTTHOLD L. LANGER, OF STOOKTON, CALIFORNIA, ASSIGNO-R TO JOSEPH GEIGER, OF

STOCKTON'-, CALIFORNIA.

Two-CYCLE Moron.

` Specification of Lettera Patent.

Patented July 21, 1908.

Application filed September 19, 1906. Serial I No. 335,253.

To all rwhom 'it may concern:

Be it 'known that I, Go'r'rHoLD L. LANGER, a citizen of the United States, and a resident of Stockton, county of San Joaquin, and State of California, have invented certain' -new and useful Improvements in Two-Cycle vMotors; and I'do declare the following to be a full, clear, and exact description of the same, such as will enable others skilledv in the art towhlch it appertains to make and use l the same, reference being had to the accom- .gas motors and particularly to the type.

known as two cycle.

' at the proper point.

The main -ob]ects of my invention are as follows: Flrst: to produce a compact', light and slm le motor. Secondto produce a motor o the type set forth in whichthere ywill be n premature or irregular explosions.

Third: to produce a two cycle motor in which all the 'power generated will be concentrated Fifth:- to produce a motor which in all'its partsis designed Ato do rapid, effective work andstill remain cool.

SixthLtofprodu'ce a motor which althoul hv 'thoroughly' effective 'in all l its works will I Acomparatively" simple of construction and easy 'to repair. :All 4these objects andmany 4minor Jones not lmentioned -are, obtained by means of verticalcylinders arranged in se` v ..ri es, each cylinder. beingprovided with separate compression and /explosioiifchambers @the compression vchamber'of one being confyio y -such.0ther and'furtherconstruction as-wi nected with the vexplosion chamber of another bysuitable ports and passages', and b a' vpear'bya perusal ofthis Vspecification and t e claims appendedl In the drawings similar characters of refer- 'fence indicate corresponding parts in .tliezsev-v eral views'.

Figure 1 is a sectional side elevation, Fig. 2- 'is a section on the line y-y'of 1,-Fig. 3 is., 'l a'section on the-line :r3-x of Fig.' 1. o

Wl portions 1 and f2, a, crank. shaft 3 -having spaced cranks 3 andfextending 'in' op v'osite f directions andv 'beingsuitably journ ed.

I first provide a lhollow basecomposed of i ournal boxes 4 held in said base by means of cross members 5. Suitsbly secured to the portion 2 of the two-part base are two or more vertical cglinders 46, said cylinders having upper cham ers 7 enlargin into vlower chambers 8, said upperchambers eingformed with hollow rentrant heads Q'extending downward therein, and said upper` chamber also havinga dependingring or flange 8a. Arra ed in the chambers 7 are pistons 10 provide with upwardl projecting uide members-11, extending etween said eads and the bodies of ing from the said'chambers 8 to the alternate chambers 7, and 16 are air intake pipes having check valves 16', the pipes being connected with said passages 15 above said in- 'take check valves 14.

-. any number of cylinders may be 'used as de-i sired. Fourth: to produce a motor in which adapted to open the passagesl 5' into the alterthe cylinders, and with enlar edortions 41'2" nate chambers 7 when the pistons are in their lowest dposition, and '18 are similar ports adapte to open exhaust near the lower `end'of thec amber 7 and between the air intake port and oil intake `port,

24 are packinghrings arranged near the` head of thepistons 1() for the purpose of increasing the packing area of the piston.

In using thedevice the downward drive of the pistons draws into the chambers S a sufiicient` quantity of oil through the valves 14 and' a quantityof external air through the plugsextending'into l acking rings arranged atl orts .19, located valves 16', said external-air passing through 4the passages .15. The upward drive of the pistons then compresses this jair. and oil near the upper end of said chambers 8', and when the ports 17,'iapen the passages 15 into-the alternate cham ers 7the pressure causes the comparatively. pure air from the assages 15, Vas described, to' first'pass into t e alternate chambers 7, thus clearing all the dead gases Enos lparksfrom' 21 cause an explosion which rives the pistons backward and then the ports 18 open the ports 19 to the exhaust.

he same operation described takes place i alternatelyin Vthechambers 7 since the pasfor com ressing the mixture; also the feature of orcing the mixture alternately from A. plode sages 15 lead from one of the chambers 8 to .the alternate chamber 7. Waterv running' through thejacket 20 keeps the chambers 7 cool. i l

As will be seen the main features by means of which the ldesired ends are attained are the enlarged' chambers 8, and the enlarged pistons working therein forming eiiicient means the said ni'ixin chambers to the alternate explosion cham ers, thus always giving the said explosion chambers a sufficient chance.

to exhaust the dead gases before the new charge enters; also thefeature of the heads 9 and the guide members 11 provided with the ports 17 and 1.8 whereby the en ine is equipped to permit the exhaust of t e exgases and the entrance of the new char e. 1

VVile I have set forth .in some detail the main features of the pres .and preferred embodiment of my improv d motor, still l do not desire to be restricted to such specific detail, as many small changes in the construction thereof may be resorted toat will l, without departing from the spirit of'my inassages4 whereb lished between t e enlarged portion. of one vention.

Having thus described my invention what I.. claim as new and desire to vsecure by Let# ters Patent is:

A1.[n aniotor, a hollow base, a pairy of spaced cylinders mounted upon said base and connectedat one end therewith, the upper portion of each c linder being smallerl in diameter than the ower portion, said upper portion of each cylinder vconstituting an explosion chamber, the said lower` portion ada ted to serve as a pump, passages in the wal s ofsaid upper portions, ports through the walls of the cylinders "at the ends, of said communication is estabcylinder and the smaller portion of the other cylinder, the port at the up er end of each passage constituting an'inlet or the explosiony chain er, an oil intake port-and an air intaktey port for each cylinder, said ports being spaced y apart and leading into the aforesaid passages,

an exhaust port in the wall of each cylinder, closuresat the outer ends of said cylinders and rovided with hollow rentrant heads deing lwithin the cylinders and spaced en fiom their inner surfaces, transverse ports in said heads opposite the air intake ports of the cylinders, pistons operating within said cylinders and provided with guide members operating betweenv said rentrant heads and said cylinders, and spaced orts in said guide members ada ted to be a ined with the explosion cham er inlet ports and the exhaust ports respectively, and venlarged portions carried by said pistons operating in the enlarged portions of the cylinders. v

2. In a motor, a hollow base, a crank shaft journaled in said base, cylinders mounted upon said base and connected at one end therewith, said cylinders each havin twoportions of different diameters, the en argedA ,portion of each cylinder bein adapted to serve as a ump and the smal erportion of each cylin er as an explosion chamber, "pas-l sages in the walls of the smaller diameter` portions of said cylinders, ports at the upper ends of said passages communicating with the explosion chambers and constituting.

inlet ports therefor, and ports at the lower endsl of said passages communicating with the pumps, an oil intake port and an air intake port spaced apart andvleading into each passage, exhaust ports in the walls of the cylinders, closures at .the outer ends of said cylinders and vprovided with hollow rentrant vheads depending within the ex chambers and spaced from the sides t ereof, pistons operating in s aid cylinders and provided with extendingguide members operlosion ating between the walls of the explosion l chambers and the heads and having space ports adapted to register with the inlet ports of the explosion pis-tons operating in the enlarged portions of the cylinders, b connecting rods between said pistons and crank shaft, and a sparkin ig` heads. v

v3. In a motor, a hollow base, a shaft hav.

naled t ough said base, two .cylinders each having two portions of diierent diameters,

de ending p rentrant jchambers and vthe exhaust ports respectively, enlarged'- portions carried by said the enlarged portionv of each cylinder being` 1# adapted to serve as a pump, and the 'smaller s portion -as an explosion chamber, said cylinders being mounted upon the hollow base and connecting at one end 'therewithand provided with passages in the walls thereof g affording communicationbetween the enlarged portion of each' cylinder and the smaller portion ofthe other cylinder and with ports at the juncture'of the larger and smaller portions of said cyhnders connectingthe enlarged portions of said cylinders with said assages, and ports intermediate theends o the smaller portions of the cyhn- 110 f niter connected through each of said ho ow l ders connected with said passages, an oil innecting means between the pistons and `the take and an air 'intake' leading respectively crank shaft. 10 I to each passage, depending closure heads at In, testimonywhereof I affix my signature the outer end of the cylinders, pistons oper in presence of two witnesses.

ating respectively in both portions of said GOTTHOLD L. LANGER. cylinders and provided with extending guide Witnesses: members operating between the depending PERCY S. WEBsTER, closure heads and the cylinders, and con- F. E. HOLTON. 

